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<div class="titlepage"><div><div><h3 class="title">
<a name="boost_asio.reference.buffered_read_stream"></a><a class="link" href="buffered_read_stream.html" title="buffered_read_stream">buffered_read_stream</a>
</h3></div></div></div>
<p>
        <a class="indexterm" name="boost_asio.indexterm.buffered_read_stream"></a>
      </p>
<p>
        Adds buffering to the read-related operations of a stream.
      </p>
<pre class="programlisting">template&lt;
    typename Stream&gt;
class buffered_read_stream :
  noncopyable
</pre>
<h5>
<a name="boost_asio.reference.buffered_read_stream.h0"></a>
        <span class="phrase"><a name="boost_asio.reference.buffered_read_stream.types"></a></span><a class="link" href="buffered_read_stream.html#boost_asio.reference.buffered_read_stream.types">Types</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/executor_type.html" title="buffered_read_stream::executor_type"><span class="bold"><strong>executor_type</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  The type of the executor associated with the object.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/lowest_layer_type.html" title="buffered_read_stream::lowest_layer_type"><span class="bold"><strong>lowest_layer_type</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  The type of the lowest layer.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/next_layer_type.html" title="buffered_read_stream::next_layer_type"><span class="bold"><strong>next_layer_type</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  The type of the next layer.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<h5>
<a name="boost_asio.reference.buffered_read_stream.h1"></a>
        <span class="phrase"><a name="boost_asio.reference.buffered_read_stream.member_functions"></a></span><a class="link" href="buffered_read_stream.html#boost_asio.reference.buffered_read_stream.member_functions">Member
        Functions</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/async_fill.html" title="buffered_read_stream::async_fill"><span class="bold"><strong>async_fill</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Start an asynchronous fill.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/async_read_some.html" title="buffered_read_stream::async_read_some"><span class="bold"><strong>async_read_some</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Start an asynchronous read. The buffer into which the data will
                  be read must be valid for the lifetime of the asynchronous operation.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/async_write_some.html" title="buffered_read_stream::async_write_some"><span class="bold"><strong>async_write_some</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Start an asynchronous write. The data being written must be valid
                  for the lifetime of the asynchronous operation.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/buffered_read_stream.html" title="buffered_read_stream::buffered_read_stream"><span class="bold"><strong>buffered_read_stream</strong></span></a> <span class="silver">[constructor]</span>
                </p>
              </td>
<td>
                <p>
                  Construct, passing the specified argument to initialise the next
                  layer.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/close.html" title="buffered_read_stream::close"><span class="bold"><strong>close</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Close the stream.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/fill.html" title="buffered_read_stream::fill"><span class="bold"><strong>fill</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Fill the buffer with some data. Returns the number of bytes placed
                  in the buffer as a result of the operation. Throws an exception
                  on failure. <br> <span class="silver"> —</span><br> Fill the buffer with some data. Returns
                  the number of bytes placed in the buffer as a result of the operation,
                  or 0 if an error occurred.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/get_executor.html" title="buffered_read_stream::get_executor"><span class="bold"><strong>get_executor</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get the executor associated with the object.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/in_avail.html" title="buffered_read_stream::in_avail"><span class="bold"><strong>in_avail</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Determine the amount of data that may be read without blocking.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/lowest_layer.html" title="buffered_read_stream::lowest_layer"><span class="bold"><strong>lowest_layer</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get a reference to the lowest layer. <br> <span class="silver"> —</span><br> Get a const
                  reference to the lowest layer.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/next_layer.html" title="buffered_read_stream::next_layer"><span class="bold"><strong>next_layer</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get a reference to the next layer.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/peek.html" title="buffered_read_stream::peek"><span class="bold"><strong>peek</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Peek at the incoming data on the stream. Returns the number of
                  bytes read. Throws an exception on failure. <br> <span class="silver"> —</span><br> Peek
                  at the incoming data on the stream. Returns the number of bytes
                  read, or 0 if an error occurred.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/read_some.html" title="buffered_read_stream::read_some"><span class="bold"><strong>read_some</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Read some data from the stream. Returns the number of bytes read.
                  Throws an exception on failure. <br> <span class="silver"> —</span><br> Read some data from
                  the stream. Returns the number of bytes read or 0 if an error occurred.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/write_some.html" title="buffered_read_stream::write_some"><span class="bold"><strong>write_some</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Write the given data to the stream. Returns the number of bytes
                  written. Throws an exception on failure. <br> <span class="silver"> —</span><br> Write the
                  given data to the stream. Returns the number of bytes written,
                  or 0 if an error occurred.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<h5>
<a name="boost_asio.reference.buffered_read_stream.h2"></a>
        <span class="phrase"><a name="boost_asio.reference.buffered_read_stream.data_members"></a></span><a class="link" href="buffered_read_stream.html#boost_asio.reference.buffered_read_stream.data_members">Data Members</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody><tr>
<td>
                <p>
                  <a class="link" href="buffered_read_stream/default_buffer_size.html" title="buffered_read_stream::default_buffer_size"><span class="bold"><strong>default_buffer_size</strong></span></a> <span class="silver">[static]</span>
                </p>
              </td>
<td>
                <p>
                  The default buffer size.
                </p>
              </td>
</tr></tbody>
</table></div>
<p>
        The <a class="link" href="buffered_read_stream.html" title="buffered_read_stream"><code class="computeroutput">buffered_read_stream</code></a>
        class template can be used to add buffering to the synchronous and asynchronous
        read operations of a stream.
      </p>
<h5>
<a name="boost_asio.reference.buffered_read_stream.h3"></a>
        <span class="phrase"><a name="boost_asio.reference.buffered_read_stream.thread_safety"></a></span><a class="link" href="buffered_read_stream.html#boost_asio.reference.buffered_read_stream.thread_safety">Thread
        Safety</a>
      </h5>
<p>
        <span class="emphasis"><em>Distinct</em></span> <span class="emphasis"><em>objects:</em></span> Safe.
      </p>
<p>
        <span class="emphasis"><em>Shared</em></span> <span class="emphasis"><em>objects:</em></span> Unsafe.
      </p>
<h5>
<a name="boost_asio.reference.buffered_read_stream.h4"></a>
        <span class="phrase"><a name="boost_asio.reference.buffered_read_stream.requirements"></a></span><a class="link" href="buffered_read_stream.html#boost_asio.reference.buffered_read_stream.requirements">Requirements</a>
      </h5>
<p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/buffered_read_stream.hpp</code>
      </p>
<p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code>
      </p>
</div>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
      M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
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